What’s Vulnerable › Vulnerabilities

CVE-2021-35249: Domain Admin Broken Access Control

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-17 · updated 2026-06-17
• Weakness: CWE-284

Description

This broken access control vulnerability pertains specifically to a domain admin who can access configuration & user data of other domains which they should not have access to. Please note the admin is unable to modify the data (read only operation). This UAC issue leads to a data leak to unauthorized users for a domain, with no log of them accessing the data unless they attempt to modify it. This read-only activity is logged to the original domain and does not specify which domain was accessed.

Affected products

• SolarWinds Serv-U: before 15.3.1 — fixed in 15.3.1

How to fix

Upgrade to a fixed version: SolarWinds Serv-U 15.3.1. Check the vendor advisory for mitigations.

References

• https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3-1_release_notes.htm
• https://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35249
• https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3-1_release_notes.htm
• https://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35249

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